peters



2 SheetS- -Sheet 1.

L. E. ROSS. ShuttlMotion for Looms.

No. 233,5 51. Patented-Oct. 19,1880.

"Ill" N. PETERS. PHOTO UTHOGRAPHER WASHINGTON D c.

2 Shee ts--Sheet 2.

L. E. ROSS.

Shuttle Motion for Looms.

Patehted Oct. 19,1880.

ER, WASHINGTON. u c.

N. PETERS. FHQTO-LITHQGHAPN UNiTEe Tamas FFIQEQ PATENT SHUTTLE-:MOTION FOR LOOlVlS.

SPECIFICATION forming part of Letters Patent No. 233,551, dated October 19, 1880.

Application filed April 23, 1879.

To all whom it may concern Be it known that I, LESTER E. Ross, of the city of Providence, in the county of Providence, and State of Rhode Island, (Providence Plantations,) have invented new and usefu Improvements in Shuttle-Motions for Looms; and I do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

This invention relates to the method of propelling the shuttle in looms, and is an improvement upon my Patents of April 15, 187 3, N 0. 137,798, and September 30, 1873, No. 143,- 257 and it consists in part in a picker-motion consisting of a number of independent springs, a pivoted cover acted on by the said springs individually, and suitable mechanism to deflect the pivoted cover against the pressure of the springs and release it at the proper moment to cause the springs to propel the shuttle, as hereinafter described also in devices for mounting and operating the springs and their cover and accessories for actuating the picker, as hereinafter described; also, in the combination with the picker-movement of a bufier, as hereinafter described; also, in the combination with said picking devices of a holdinglatch and tripping cam and lever to release the spring-cover at the proper moment to propel the shuttle; also, in an adjustable tappet device combined with the aforesaid picking mechanism to control the frequency or succession of the strokes from the respective sides of the loom, as hereinafter described also, in the combination of spring-cover, rigid arms mounted thereon, cam-shaft, retracting-cams, holding-catches, and tripping mechanism, substantially as hereinafter described.

To enable others skilled in the art to make and use my invention, I will now proceed to describe fully its construction and manner of operation. I

In the accompanying drawings, Figure 1 represents a perspective view of a loom with my improved shuttle-motion attached, showing only 'such parts as are necessary to understand the operation of this improvement. Fig. 2 shows a horizontal sectional view of the loom. Fig. 3 shows a side view of the springs I together with the butter, picker-stick arm, and

friction roller and lover, and the vibrating cover and spring-brace. Fig. 4 represents one of the springs detached from the other appliances and enlarged. Fig. 5 shows a sectional view on the line 5 5, Fig. 3.

it represents the frame-work of the loom, to which is bolted the brace-bar b, at each end, which sustains the spring mechanism. 0 in- :dicates the fulcrum-shaft of the springs. d is the vibratory cover thereof, which is a long bar, serving the double purpose to cover the springs and also to collect and unite the force of the separate springs and concentrate it upon the shuttle through the other suitable appliances.

0 represents the picker-stick arm, which is rigidly attached to the vibratory spring-cover and connected to the picker-stick by means of a rod or any other suitable connection.

f represents an arm provided with a horizontal stud at its upper end, upon which works a friction-roll, f. The lower end of said lever is firmly attached to the vibratory cover.

9 represents a latch projecting horizontally inward from a shaft, g", and adapted to engage with a pin, f or other suitable projection at or near the end of the lever f, for the purpose of holding the springs in a strained position ready to drive the shuttle at the proper time.

h represents a spring acting on the shaft g", so as to hold the latch g in position to engage with thepin f so as to hold the spring under tension until'required to propel the shuttle.

i represents an arm projecting rigidly from the latch-shaft 9* in position to be. engaged by tappet-rods 0 0, for the purpose of retracting the latch g on releasing the arm f at the proper moment.

7t 70 represent cams, each provided with two screw-flanges, said cams being fastened to the cam or tappet shaft of the loom, the flanges being opposite each other and so adjusted as to engage with the friction-roller f 2 at the upper end of the lever f and move the same laterally, by means of which movement the springs are strained up.

Z Z represent the springs. These are mounted on a fulcrunrshaft, c, and attached'independently at their respective ends to the brace-bar b and vibratory cover 01, so that the movement of the said cover around the shaft will be resisted by the combined force of the springs.

m represents the cam or tappet shaftof the loom. a represents a sleeve loosely fitted upon the tappet-shaft mfand so connected thereto as to admit-of" its being moved endwise thereon while turning with the shaft m. To the sleeve n are fixed the tappet-rods o 0, which project to unequal distances at their ends, so that their endwise adjustment will adapt them to effect the pick from each side alternately, or from either side alone, as hereinafter described. The ends of said rods each pass through holes in the cam iianges 7c and cause the rods to revolve with the shaft.

19 represents a cylinder, preferably c011- structed so as to form a part of the brace b, or rigidly attached thereto, which extends downward far enough to admit of a spring or any other suitable cushion being located within.

q represents a piston resting upon the spring or cushion 22, within the cylinder 19, and extending above the upper end of the cylinder, as shown.

1" represents a set-screw titted into the lower end of the cylinder 17, by means of which the cushion v and piston q can be lowered or raised, as desired, to receive the direct impact of the blow from the springs after the shuttle has been driven. The proper yielding motion is obtained from the rubber or spring cushion 1;, located in the cylinder 19.

8 represents a lever, by means of which the tappet-rods o 0 are shifted from side to side. This movement of the tappet-rods to determine the pick may be eifected automatically by a simple connection with the customary chain that operates the boxes containing the shuttles or by any other suitable method.

t is the usual pulley, by means of which motion is communicated to the first-motion or crank shaft of the loom.

The operation of the loom is as follows: Motion is communicated to the first-motion or crank shaft in the usual manner, which operates the lay-beam, carrying the reed backward and forward. By means of the two-to-oue gears the tappet-shaft m is revolved one-half as fast as the first-motion or crank shaft. The

picker-cams 70 70, being fastened to the tappetshaft m, revolve with it. Said cams, being provided with two screw-shaped flanges opposite each other, engage with the friction-roller and move the lever f and vibrating cover (1 against the force of the springs Z l far enough to store up sufficient force in the springs to drive the shuttle with the requisite amount of speed and force. The cams 7c 7d are adjusted upon the shaft m, so as not only to strain the springs to the required tension, but also to allow the friction-roller to be disengaged from the cam at the proper moment to time the throw of the shuttle with proper reference to the opening of the warp and the movement of the laybeam.

It will be seen that two flanges of the cams 7r It would produce two strokes of the picker from each side of the loom at each revolution of the tappet-shaft m. To prevent this the latch g is provided, which holds the pick on one side while it is being delivered from the opposite side. The cam-rods 0 0 are designed to suspend the action of the latches g g alternately when it is desired to throw the shuttle alternately from side to side, as is the case when but one color is used for the woof, and by a simple end movement to be so placed as to disengage the latch g entirely from one side, and not to interfere with the action of the latch g on the other side, of the loom,thus allowing the springs to throw the shuttles from one side in succession at each beat of the lay as long as the cam-rods 0 0 remain in one position, thereby enabling the operator to weave one thread of each color alternately, or any desired number of threads of each or any color without the loss of power. and-wear and tear of machinery attending the methods heretofore in use of producing a false pick on either end or side of the loom from which the shuttle is not to be thrown. When this spring-shuttle motion is designed for a plain one-shuttle loom the latch and tripping devices are not used, and cams provided with but one screw-flange and having a plain surface, one-half, or nearly so, of the diameter of the cams are substituted for the cams k 70.

The advantages claimed for the above-described invention are:

First, greater durability of the springs, as each individual spring sustains but a slight amount of strain, the desired amount of force being attained by increasing the number of springs.

Second, the adjustable buffer enables the operator to regulate the force of the blow upon the shuttle and to adjust the lever f and friction-roller to the actuating-cam k.

Third, the latch g enables the operator to adjust his loom without extra expense to pattern-weavin g of an intricate character and to plain weaving also.

Fourth, the latch-tripping device enables the loom to throw any desired number of shuttles from one side to the other successively, and the order in which the shuttles are thrown to be changed at the will of the designer without making a false pick at the opposite end of the loom.

I thus effect great saving in power and increase the durability of the picking mechanism and other parts of the loom.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The spring'cover cl, pivoted as described, provided with the arm 6 and adapted to re ceive one end of a series of independent springs, the picker of a loom, and means to connect the same to arm 0, in combination with springs l and supporting mechanism, as described, and

mechanism to actuate the cover against the force of the springs in one direction and suddenly release the same to efl'ect the propelling 0f the shuttle of the loom, as set forth.

2. The combination of the springs l, bracebar b, fulcrum-shaft c, and cover (I, providedwith arms f and 6, with the picker-staff of a loom, and devices to connect the same with the arm (2, and mechanism to actuate the arm f in the direction of the loom-frame, substantially as and for the purposes herein set forth.

3. The combination of the brace-bar I), cover d, provided with arms 0 and f, suitable mechanism to move the arm f toward the loomframe, springs Z l, shaft 0, and the buffer consisting of a cylinder, 10, provided with an adjusting-screw, 1', piston q, and spring or cushion 21, substantially as and for the purposes set forth. 1

4. The combination, with the cover (1, provided with an arm, f, having pin f and suitable actuating mechanism, of the latch g, tripping-lever i, shaft 9", spring h, and a trippingcam, substantially as and for the purposes set forth.

5. The combination of the shaft m,provided with cams 70 7c, the sleeve a, mechanism to reciprocate said, sleeve upon the shaft m, the shifting tappet-rods 0 0, tripping-levers M, latches g g, shafts g", and springs h h, substantially as and for the purposes set forth.

6. The combination of the shaft m, provided with cams k It, covers (I d, provided with arms ff, adapted to engage said cams, latches g g, and tripping mechanism, operating substantially as and for the purposes set forth.

This specification signed and witnessed this 22d day of March A. D. 1879.

LESTER E. ROSS.

Witnesses:

J. 0. BROWN, ELISHA O. MONEY. 

